We analyze the optimal dynamic policy of an antitrust authority towards horizontal mergers when merger proposals are … endogenous and occur over time. Approving a currently proposed merger will affect the profitability and welfare effects of … surplus by using a completely myopic merger review policy that approves a merger today if and only if it does not lower …

We study upstream horizontal mergers and their potential efficiency gains. We show that an upstream horizontal merger … and decreases wholesale prices when downstream competition is not too strong. Examining whether the merger's potential …

indicate that so long as two firms remain in the market post merger, the average transaction price is roughly unaffected by … horizontal mergers. However, there are potential distributional effects; our estimates indicate that a three-to-two merger raises …

uniform price increases throughout all the goods in the candidate relevant market, since 1984 the versions of the U.S. Merger … contributions to the literature, we propose a unified framework for merger simulations and for the so-called HMT in its diversity of …